A conditional loop iterates over a set of instructions while a condition is TRUE. To use this type of loop correctly, the instructions must change the condition every time the loop iterates until the condition evaluates as FALSE. Conditional loops are known as WHILE loops, as in "loop WHILE this condition is true. "
<cfloop condition = "expression">
cfabort,
cfbreak,
cfexecute,
cfexit,
cfif cfelseif cfelse,
cflocation,
cfswitch cfcase cfdefaultcase,
cfthrow,
cftry cfcatch
Attribute |
Description |
---|---|
condition |
Required. Sets the condition that controls the loop. The loop repeats as long as the condition evaluates as TRUE. When the condition is FALSE, the loop stops. |
The following example increments the parameter "CountVar " from 1 to 5.
<!-- Set the variable CountVar to 0 --> <cfset CountVar = 0> <!-- Loop until CountVar = 5 --> <cfloop condition = "CountVar LESS THAN OR EQUAL TO 5"> <cfset CountVar = CountVar + 1> The loop index is <cfoutput>#CountVar#</cfoutput>.<BR> </cfloop>
The result of this loop in a browser appears as:
The loop index is 1. The loop index is 2. The loop index is 3. The loop index is 4. The loop index is 5.